.right-nav {
    position: fixed;
    padding: 0 16px;
    top: 55%;
    margin-top: -140px;
    right: 0;
    z-index: 899;
    background-color: #fff;
    box-shadow: 0 4px 12px 0 rgba(7, 17, 27, .1)
}

.right-nav li {
    width: 26px;
    padding: 16px 0;
    line-height: 22px;
    color: #b5b9bc;
    box-sizing: border-box;
    text-align: center;
    cursor: pointer;
    border-bottom: 1px solid #edf1f2
}

.right-nav li:hover span {
    display: block
}

.right-nav li:hover i {
    display: none
}

.right-nav li span {
    font-size: 12px;
    color: #f20d0d;
    line-height: 12px;
    display: none
}

.right-nav li i {
    font-size: 22px
}

.qcrapp,
.qcrw {
    width: 172px;
    height: 212px;
    background-color: #fff;
    position: absolute;
    bottom: 0;
    right: 52px;
    display: none
}

.qcrw {
    background: url(../../images/elevator.png) no-repeat;
    background-size: cover
}

.qcrapp {
    background: url(../../images/elevator.png) bottom no-repeat;
    background-size: cover
}

.right-nav li:nth-child(3):hover .qcrapp,
.right-nav li:nth-child(4):hover .qcrw {
    display: block
}

#goTop {
    display: none
}

.backShow {
    display: block !important
}